[R] rbind: number of columns of result is not a multiple of vector length (arg 1)
jim holtman
jholtman at gmail.com
Wed Feb 18 04:01:06 CET 2009
try using:
data.info <- rbind(data.info, cbind(station.id, year, date, max.discharge))
On Tue, Feb 17, 2009 at 9:26 PM, CJ Rubio <cjrubio at kongju.ac.kr> wrote:
>
> i have the following constructed and running very well,, thanks to Gabor
> Grothendieck for his help.
>
>>data.info <- c("station.id", "year", "date", "max.discharge")
>>
>> for(i in 1:num.files) {
> + station.id <- substring(data[i], 1,8)
> + DF <- read.table(data[i], sep=",", blank.lines.skip = TRUE)
> + z <- zoo(DF[,4], as.Date(as.character(DF[,3]), "%m/%d/%Y"))
> + f <- function(x) time(x) [which.max(x)]
> + ix <- tapply(z, floor(as.yearmon(time(z))),f)
> + year <- (1988:2005)
> + date <- time(z[ix])
> + max.discharge <- coredata(z[ix])
> + data.info <- rbind(data.info, c(station.id, year, date, max.discharge))
> + }
>
> my problem with my code occurs in the part where I arrange my results..
> after running this code, i get this warning:
>
> Warning message:
> In rbind(data.info, c(station.id, year, date, max.discharge)) :
> number of columns of result is not a multiple of vector length (arg 1)
>
>
> i can't figure out what to do to produce the result i wanted:
> (for each station, it should look like this:)
>
> data.info "station.id" "year" "date" "max.discharge"
> "01014000" 1988 "1988-11-07" 4360
> "01014000" 1989 "1989-05-13" 20000
> "01014000" 1990 "1990-10-25" 9170
> "01014000" 1991 "1991-04-22" 12200
> "01014000" 1992 "1992-03-29" 11800
> ....
> "01014000" 2005 "2005-04-04" 22100
>
> thanks in advence for your help..
> --
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>
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
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